Progress of researches on interactions between sandfly gut microecology and <i>Leishmania</i> infection

CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES ›› 2025, Vol. 43 ›› Issue (5): 711-717.doi: 10.12140/j.issn.1000-7423.2025.05.017

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Progress of researches on interactions between sandfly gut microecology and Leishmania infection

HE Yaqi1()(), CUI Lei1, FANG Yuan1,2, ZHOU Zhengbin1, ZHANG Yi1,2,*()()   

  1. 1 National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention; Chinese Center for Tropical Diseases Research; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases; NHC Key Laboratory on Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai 200025, China
    2 School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
  • Received:2025-05-09 Revised:2025-07-24 Online:2025-10-30 Published:2025-10-23
  • Contact: *E-mail: zhangyi@nipd.chinacdc.cn
  • Supported by:
    National Key Research and Development Program of China(2023YFA1801000);National Key Research and Development Program of China(2023YFA1801001)

Abstract:

Sandflies, as vectors of multiples pathogens, are of significant epidemiological importance, and has been given attention due to their role in transmitting Leishmania. The growth and development of Leishmania is affected by the diverse microbial communities present in the sandfly gut, which also induces differential gene expression in the sandfly gut. This article summarizes the composition of the sandfly gut microbiota and their interactions with Leishmania, and alterations of functional characteristics in the sandfly gut caused by the parasite. Sandflies, Leishmania, gut microbiota, and gene expression form a complex network, and deciphering their interactions may provide more strategies for leishmaniasis management and sandfly vector control.

Key words: Sandfly, Leishmania, Gut microbiota, Gut function

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